.daohang{
    position: fixed;
    right: 0;
    top: 10%;
}
.daohang ul li{
    padding: 0.1rem;
    color: blue;
}
.daoul{
    background: #f6f5fa;
    color: #99999b;
}
.chengs{
    min-height: 10rem;
    background: #f6f5fa;
}
